SE8603945D0 - Forfarande for stotfri omkoppling mellan aktiva enheter och beredskapsenheter vid en datorutrustning samt anordning for genomforande av forfarandet - Google Patents
Forfarande for stotfri omkoppling mellan aktiva enheter och beredskapsenheter vid en datorutrustning samt anordning for genomforande av forfarandetInfo
- Publication number
- SE8603945D0 SE8603945D0 SE8603945A SE8603945A SE8603945D0 SE 8603945 D0 SE8603945 D0 SE 8603945D0 SE 8603945 A SE8603945 A SE 8603945A SE 8603945 A SE8603945 A SE 8603945A SE 8603945 D0 SE8603945 D0 SE 8603945D0
- Authority
- SE
- Sweden
- Prior art keywords
- active
- units
- unit
- computer equipment
- procedure
- Prior art date
Links
- 230000002093 peripheral effect Effects 0.000 abstract 4
- 239000000872 buffer Substances 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/48—Program initiating; Program switching, e.g. by interrupt
- G06F9/4806—Task transfer initiation or dispatching
- G06F9/4812—Task transfer initiation or dispatching by interrupt, e.g. masked
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1415—Saving, restoring, recovering or retrying at system level
- G06F11/142—Reconfiguring to eliminate the error
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
- G06F11/202—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where processing functionality is redundant
- G06F11/2023—Failover techniques
- G06F11/2025—Failover techniques using centralised failover control functionality
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
- G06F11/202—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where processing functionality is redundant
- G06F11/2023—Failover techniques
- G06F11/2028—Failover techniques eliminating a faulty processor or activating a spare
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Quality & Reliability (AREA)
- Software Systems (AREA)
- Hardware Redundancy (AREA)
- Retry When Errors Occur (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8603945A SE454730B (sv) | 1986-09-19 | 1986-09-19 | Forfarande och datorutrustning for stotfri omkoppling av funktionen fran aktiva enheter till beredskapsenheter i en centralenhet |
EP87113359A EP0260625B1 (en) | 1986-09-19 | 1987-09-12 | Method for bumpless changeover from active units to back-up units in computer equipment and a device for carrying out the method |
DE8787113359T DE3781486T2 (de) | 1986-09-19 | 1987-09-12 | Verfahren zur stossfreien umschaltung von aktiven einheiten zu ersatzeinheiten in datenverarbeitungsanlagen und datenverarbeitungsanlage zur durchfuehrung dieses verfahrens. |
US07/097,784 US4941087A (en) | 1986-09-19 | 1987-09-18 | System for bumpless changeover between active units and backup units by establishing rollback points and logging write and read operations |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8603945A SE454730B (sv) | 1986-09-19 | 1986-09-19 | Forfarande och datorutrustning for stotfri omkoppling av funktionen fran aktiva enheter till beredskapsenheter i en centralenhet |
Publications (3)
Publication Number | Publication Date |
---|---|
SE8603945D0 true SE8603945D0 (sv) | 1986-09-19 |
SE8603945L SE8603945L (sv) | 1988-03-20 |
SE454730B SE454730B (sv) | 1988-05-24 |
Family
ID=20365646
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8603945A SE454730B (sv) | 1986-09-19 | 1986-09-19 | Forfarande och datorutrustning for stotfri omkoppling av funktionen fran aktiva enheter till beredskapsenheter i en centralenhet |
Country Status (4)
Country | Link |
---|---|
US (1) | US4941087A (sv) |
EP (1) | EP0260625B1 (sv) |
DE (1) | DE3781486T2 (sv) |
SE (1) | SE454730B (sv) |
Families Citing this family (59)
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US5121486A (en) * | 1987-11-20 | 1992-06-09 | Hitachi, Ltd | Network control system for dynamically switching a logical connection between an identified terminal device and an indicated processing unit |
US5247692A (en) * | 1988-02-08 | 1993-09-21 | Nec Corporation | Multiple file system having a plurality of file units holding the same files in which loss of data is prevented in a failure of a file unit |
GB2217487B (en) * | 1988-04-13 | 1992-09-23 | Yokogawa Electric Corp | Dual computer system |
US5253360A (en) * | 1988-12-16 | 1993-10-12 | Kabushiki Kaisha Toshiba | Facsimile device having continuous operating capabilities immediately after recovery from trouble and related method |
US5832202A (en) * | 1988-12-28 | 1998-11-03 | U.S. Philips Corporation | Exception recovery in a data processing system |
JPH02216545A (ja) * | 1989-02-17 | 1990-08-29 | Nec Corp | 実行履歴記憶装置 |
DE69031443T2 (de) * | 1989-06-30 | 1998-04-23 | Digital Equipment Corp | Verfahren und Anordnung zur Steuerung von Schattenspeichern |
US5613106A (en) * | 1989-09-15 | 1997-03-18 | Motorola, Inc. | Method for processing and storing a transaction in a distributed database system |
US5170480A (en) * | 1989-09-25 | 1992-12-08 | International Business Machines Corporation | Concurrently applying redo records to backup database in a log sequence using single queue server per queue at a time |
US5551050A (en) * | 1989-12-20 | 1996-08-27 | Texas Instruments Incorporated | System and method using synchronized processors to perform real time internal monitoring of a data processing device |
DE69021712T2 (de) * | 1990-02-08 | 1996-04-18 | Ibm | Wiederanlaufkennzeichnungsmechanismus für fehlertolerierende Systeme. |
US5157663A (en) * | 1990-09-24 | 1992-10-20 | Novell, Inc. | Fault tolerant computer system |
US5202822A (en) * | 1990-09-26 | 1993-04-13 | Honeywell Inc. | Universal scheme of input/output redundancy in a process control system |
DE59108472D1 (de) * | 1991-02-01 | 1997-02-20 | Siemens Ag | Verfahren für den fehlerbedingten Neustart eines Multiprozessorrechners eines Fernmeldevermittlungssystems |
US5442772A (en) * | 1991-03-29 | 1995-08-15 | International Business Machines Corporation | Common breakpoint in virtual time logic simulation for parallel processors |
US5363503A (en) * | 1992-01-22 | 1994-11-08 | Unisys Corporation | Fault tolerant computer system with provision for handling external events |
US5379412A (en) * | 1992-04-20 | 1995-01-03 | International Business Machines Corporation | Method and system for dynamic allocation of buffer storage space during backup copying |
US20020091850A1 (en) | 1992-10-23 | 2002-07-11 | Cybex Corporation | System and method for remote monitoring and operation of personal computers |
US5664195A (en) * | 1993-04-07 | 1997-09-02 | Sequoia Systems, Inc. | Method and apparatus for dynamic installation of a driver on a computer system |
AU2663095A (en) * | 1994-06-10 | 1996-01-05 | Sequoia Systems, Inc. | Main memory system and checkpointing protocol for fault-tolerant computer system |
US5566297A (en) * | 1994-06-16 | 1996-10-15 | International Business Machines Corporation | Non-disruptive recovery from file server failure in a highly available file system for clustered computing environments |
US5530802A (en) * | 1994-06-22 | 1996-06-25 | At&T Corp. | Input sequence reordering method for software failure recovery |
FI98595C (sv) * | 1994-07-12 | 1997-07-10 | Nokia Telecommunications Oy | Förfarande för uppvärmning av en reservprocess i ett dubblerat realtidssystem, särskilt i en telefonväxel |
US5649152A (en) | 1994-10-13 | 1997-07-15 | Vinca Corporation | Method and system for providing a static snapshot of data stored on a mass storage system |
US5835953A (en) | 1994-10-13 | 1998-11-10 | Vinca Corporation | Backup system that takes a snapshot of the locations in a mass storage device that has been identified for updating prior to updating |
US5664198A (en) * | 1994-10-26 | 1997-09-02 | Intel Corporation | High speed access to PC card memory using interrupts |
JP3086779B2 (ja) * | 1995-06-19 | 2000-09-11 | 株式会社東芝 | メモリ状態復元装置 |
US5721842A (en) * | 1995-08-25 | 1998-02-24 | Apex Pc Solutions, Inc. | Interconnection system for viewing and controlling remotely connected computers with on-screen video overlay for controlling of the interconnection switch |
US5745672A (en) * | 1995-11-29 | 1998-04-28 | Texas Micro, Inc. | Main memory system and checkpointing protocol for a fault-tolerant computer system using a read buffer |
US5864657A (en) * | 1995-11-29 | 1999-01-26 | Texas Micro, Inc. | Main memory system and checkpointing protocol for fault-tolerant computer system |
US5737514A (en) * | 1995-11-29 | 1998-04-07 | Texas Micro, Inc. | Remote checkpoint memory system and protocol for fault-tolerant computer system |
US5751939A (en) * | 1995-11-29 | 1998-05-12 | Texas Micro, Inc. | Main memory system and checkpointing protocol for fault-tolerant computer system using an exclusive-or memory |
FR2745100B1 (fr) * | 1996-02-19 | 1998-04-17 | France Telecom | Systeme informatique a transparence de panne pour les applications utilisateur |
DE19624140A1 (de) * | 1996-06-17 | 1997-12-18 | Philips Patentverwaltung | System zum Übertragen von Daten |
TW379298B (en) * | 1996-09-30 | 2000-01-11 | Toshiba Corp | Memory updating history saving device and memory updating history saving method |
FR2767001B1 (fr) * | 1997-07-31 | 1999-08-27 | Bull Sa | Procede de purge des tampons de liaisons series a haut debit et dispositif de mise en oeuvre du procede |
US6304895B1 (en) | 1997-08-22 | 2001-10-16 | Apex Inc. | Method and system for intelligently controlling a remotely located computer |
US20010044843A1 (en) * | 1997-10-28 | 2001-11-22 | Philip Bates | Multi-user computer system |
JPH11134235A (ja) * | 1997-10-31 | 1999-05-21 | Hitachi Ltd | 外部記憶装置故障時の回復支援方法 |
US6633905B1 (en) | 1998-09-22 | 2003-10-14 | Avocent Huntsville Corporation | System and method for accessing and operating personal computers remotely |
US6577912B1 (en) * | 1999-01-13 | 2003-06-10 | Matsushita Electric Industrial Co., Ltd | Computer device for production equipment |
US6378014B1 (en) | 1999-08-25 | 2002-04-23 | Apex Inc. | Terminal emulator for interfacing between a communications port and a KVM switch |
GB2359385B (en) * | 2000-02-16 | 2004-04-07 | Data Connection Ltd | Method for upgrading running software processes without compromising fault-tolerance |
US7177943B1 (en) * | 2001-12-27 | 2007-02-13 | Cisco Technology, Inc. | System and method for processing packets in a multi-processor environment |
KR100441712B1 (ko) * | 2001-12-29 | 2004-07-27 | 엘지전자 주식회사 | 확장 가능형 다중 처리 시스템 및 그의 메모리 복제 방법 |
US6717869B2 (en) * | 2002-04-25 | 2004-04-06 | D.S.P. Group Ltd. | Integrated circuit having redundant, self-organized architecture for improving yield |
US7109608B2 (en) * | 2002-09-11 | 2006-09-19 | Visteon Global Technologies, Inc. | Advanced smooth transition switch |
JP3655908B2 (ja) * | 2003-02-26 | 2005-06-02 | 株式会社東芝 | 命令ロールバックプロセッサシステム、命令ロールバック方法及び命令ロールバックプログラム |
US7259482B2 (en) | 2003-09-24 | 2007-08-21 | Belkin International, Inc. | Distance extender and method making use of same |
DE102004036261A1 (de) * | 2004-07-26 | 2006-03-23 | Siemens Ag | Verfahren und Anordnung zum Synchronisieren des Speicherinhalts zwischen zwei redundanten Einrichtungen im laufenden Betrieb |
US20060023627A1 (en) * | 2004-08-02 | 2006-02-02 | Anil Villait | Computing system redundancy and fault tolerance |
US7613749B2 (en) * | 2006-04-12 | 2009-11-03 | International Business Machines Corporation | System and method for application fault tolerance and recovery using topologically remotely located computing devices |
US8009173B2 (en) | 2006-08-10 | 2011-08-30 | Avocent Huntsville Corporation | Rack interface pod with intelligent platform control |
US8427489B2 (en) | 2006-08-10 | 2013-04-23 | Avocent Huntsville Corporation | Rack interface pod with intelligent platform control |
US7594138B2 (en) * | 2007-01-31 | 2009-09-22 | International Business Machines Corporation | System and method of error recovery for backup applications |
US20100318746A1 (en) * | 2009-06-12 | 2010-12-16 | Seakr Engineering, Incorporated | Memory change track logging |
US8984318B2 (en) * | 2011-01-03 | 2015-03-17 | Ca, Inc. | System and method to avoid resynchronization when protecting multiple servers |
US10019193B2 (en) * | 2015-11-04 | 2018-07-10 | Hewlett Packard Enterprise Development Lp | Checkpointing a journal by virtualization of non-volatile random access memory |
RU174640U1 (ru) * | 2017-06-14 | 2017-10-24 | Федеральное государственное автономное образовательное учреждение высшего образования "Санкт-Петербургский политехнический университет Петра Великого" | Отказоустойчивый цифровой преобразователь информации для управления дискретными процессами |
Family Cites Families (14)
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US4099241A (en) * | 1973-10-30 | 1978-07-04 | Telefonaktiebolaget L M Ericsson | Apparatus for facilitating a cooperation between an executive computer and a reserve computer |
US4057715A (en) * | 1973-11-06 | 1977-11-08 | Westinghouse Electric Corporation | Wide range system for transferring steam generator and turbine operation between computers in a multiple turbine computer control system |
US4037088A (en) * | 1973-11-06 | 1977-07-19 | Westinghouse Electric Corporation | Wide load range system for transferring turbine or plant operation between computers in a multiple computer turbine and power plant control system |
US4351023A (en) * | 1980-04-11 | 1982-09-21 | The Foxboro Company | Process control system with improved system security features |
AU551032B2 (en) * | 1981-03-31 | 1986-04-17 | British Telecommunications Public Limited Company | Safety arrangement in computer control system |
DE3215177A1 (de) * | 1982-04-23 | 1983-10-27 | Hartmann & Braun Ag, 6000 Frankfurt | Ueberwachungssystem fuer eine oder mehrere, gleichartig aufgebaute prozessstationen |
US4466098A (en) * | 1982-06-11 | 1984-08-14 | Siemens Corporation | Cross channel circuit for an electronic system having two or more redundant computers |
US4507751A (en) * | 1982-06-21 | 1985-03-26 | International Business Machines Corporation | Method and apparatus for logging journal data using a log write ahead data set |
US4493035A (en) * | 1982-12-07 | 1985-01-08 | Motorola, Inc. | Data processor version validation |
EP0128945B1 (en) * | 1982-12-09 | 1991-01-30 | Sequoia Systems, Inc. | Memory backup system |
US4697266A (en) * | 1983-03-14 | 1987-09-29 | Unisys Corp. | Asynchronous checkpointing system for error recovery |
US4635184A (en) * | 1984-12-17 | 1987-01-06 | Combustion Engineering, Inc. | Distributed control with mutual spare switch over capability |
US4751639A (en) * | 1985-06-24 | 1988-06-14 | Ncr Corporation | Virtual command rollback in a fault tolerant data processing system |
US4751702A (en) * | 1986-02-10 | 1988-06-14 | International Business Machines Corporation | Improving availability of a restartable staged storage data base system that uses logging facilities |
-
1986
- 1986-09-19 SE SE8603945A patent/SE454730B/sv not_active IP Right Cessation
-
1987
- 1987-09-12 EP EP87113359A patent/EP0260625B1/en not_active Expired
- 1987-09-12 DE DE8787113359T patent/DE3781486T2/de not_active Expired - Lifetime
- 1987-09-18 US US07/097,784 patent/US4941087A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE3781486D1 (de) | 1992-10-08 |
EP0260625B1 (en) | 1992-09-02 |
US4941087A (en) | 1990-07-10 |
DE3781486T2 (de) | 1993-04-08 |
EP0260625A1 (en) | 1988-03-23 |
SE454730B (sv) | 1988-05-24 |
SE8603945L (sv) | 1988-03-20 |
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Legal Events
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